ok, looked up Prohibition Agent in wikipedia again and now I see that they were NOT under the FBI but were "the Bureau of Prohibition, Federal Law Enforcement Agency.. 1st: Internal Revenue, then Dept Treasury, 1930 Dept of Justice..1933 it was absorbed into FBI and changed to Alcohol Beverage Unit...and the of course back to the Treasury.. So it was just another one of those orphan kids of the Federal Government....ok got it...